Dicer-dependent upregulation of E-cadherin by pre-miR-373 has been reported in PC-3 cells.

Place RF, Li LC, Pookot D, Noonan EJ, Dahiya R. MicroRNA-373 induces expression of genes with complementary promoter sequences. Proc Natl Acad Sci U S A. 2008 Jan 28; [Epub ahead of print]

Here's the abstract.